procyberian/emacs
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Document :type-error property for customization types

Browse source 
* doc/lispref/customize.texi (Type Keywords): Document :type-error, so
Lisp programs can display a more correct message when the value of a
user option doesn't match its type (bug#23975).
This commit is contained in:
Mauro Aranda 2020-09-04 14:50:40 +02:00 • committed by Lars Ingebrigtsen
parent 689f421252
commit 0f793b5658
1 changed files with 7 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
doc/lispref/customize.texi
View file

@ -1197,6 +1197,13 @@ current value is valid for the widget. Otherwise, it should return
the widget containing the invalid data, and set that widget's
@code{:error} property to a string explaining the error.
@item :type-error @var{string}
@kindex type-error@r{, customization keyword}
@var{string} should be a string that describes why a value doesn't
match the type, as determined by the @code{:match} function. When the
@code{:match} function returns @code{nil}, the widget's @code{:error}
property will be set to @var{string}.
@ignore
@item :indent @var{columns}
Indent this item by @var{columns} columns. The indentation is used for